package com.saa.common.redis.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.lang.reflect.Method;

/**
* @author wangqian 
* @version 2017年7月26日 
* redis缓存配置类
*/
@Configuration
@EnableCaching
public class RedisConfig extends CachingConfigurerSupport{
		/****************************************如无必要，不要修改*******************************************************/
		/**
		 * 生成Key的策略
		 * @return
		 */
		@Bean
		public KeyGenerator keyGenerator(){
			return new KeyGenerator(){
				@Override
				public Object generate(Object target, Method method, Object... params) {
					// TODO Auto-generated method stub
					StringBuilder sb = new StringBuilder();
	                sb.append(target.getClass().getName());
	                sb.append(method.getName());
	                if(params != null) {
						for (Object obj : params) {
							if(obj != null) {
								sb.append(obj.toString());
							}
						}
					}
	                return sb.toString();
				}
			};
		}
		/**
		 * 管理缓存
		 */
/*		@Bean
		public CacheManager cacheManager(RedisTemplate<Object, Object> redisTemplate){
			RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
			return rcm;
		}*/
		/**
		 * RedisTemplate配置
		 */
		@Bean
		   public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
			RedisTemplate<Object, Object> template = new RedisTemplate<>();
		      template.setConnectionFactory(connectionFactory);

		      //使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
		      Jackson2JsonRedisSerializer<Object> serializer = new Jackson2JsonRedisSerializer<Object>(Object.class);

		      ObjectMapper mapper = new ObjectMapper();
		      mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		      mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		      serializer.setObjectMapper(mapper);

		      template.setValueSerializer(serializer);
		      //使用StringRedisSerializer来序列化和反序列化redis的key值
		      template.setKeySerializer(new StringRedisSerializer());
		      template.afterPropertiesSet();
		      return template;
		   }
		/****************************************如无必要，不要修改*******************************************************/		
}
